Machine for milling rods



A. R. FORS MACHINE FOR MILLING RODS Deg. 4 1923.

Filed Aug; 50, 192o s Sheets-Sheet 1 INVENTOR ARTHUR R. Fo/as ATTORNEY Dec. 4, 1923. 1,476,666

A. R. FORS MACHINE FOR MILLING RODS Filed Aug 50', 1920 3 Sheets-Sheet 2 INVENTOR I ARTHUR R Fags ATTORNEY Dec. 4, 1923.

A. R. FORS MACHINE FOR MILLING RODS Filed Aug. 50 1920 3 Sheets-Sheet 5 Fzlg. 5,

I Q INVENTOR .7 ARTHUR R. FbRs LW MW ATTORNEY Patented Dec. 4, 1923,.

warren STA PORA'II'ON, or DETROIT, MICHIGAN, A CORPORATION or VIRGI IA.

MACHINE r03 MILL N Ron's. I

Application filed Aug'us't so, 1920. Serial'No. 406,917.

To all 10 7mm it may concern:

Be it known that I, ARTHUR R. Fonsya citizen of the United States, residing at' tatey of Michigan, have invented a new and useful.

Detroit, inv the county of 'Wayne and Improvement in- Machines for Milling Rods, of which the following isa specification,

-My invention relates to an improved machine for milling rods or similarobjects and more specifically for milling one or both sides of the ends of rods in a continuous operation so that blanks may be inserted by the operator while the; machine ,is running and carried by a rotatable head or turret past the milling; cutteror cutters in a continuous operation, the, said rods or other objects being automatically clamped inpositionjbefore the 'milling operation and released after the milling operation so that the-milled rods or objects may drop from the machine or be removed therefrom by the operator. I My invention will be best understood by reference t0 the accompanying drawings showing a preferred embodiment thereof in which:

Fig. 1,is an end elevation of the machine;

partially in section to show some of the driving mechanism.

Fig. 2 is a front elevation of the machine partially in section to show the construction of the clamping mechanism.

Fig. 3 is an elevation to a reduced scale of the pulley mechanism and its support used to drive the machine. 7

Fig. 4-. is a view taken from the right hand of the parts shown in Fig. 3.

I Fig. 5 is a partial end elevation to 'an enlarged scale of the revolving turret or head used to carry the Objectsto be milled; this; view being taken from the opposite end of the machine from Fig. 1.

;Fig. 6 is a sectional view of the parts shown in Fig. 5 taken along the line66."

Figs. 7. and 8 are side and end views respectively of a blank to be milled in the machine and i ---Fi zs 9 andlU are side and endviews respectively of the blank shown in Figs. 7 and 8 after being milled by the machine.

Similar numerals refer to similar parts throughout the several views.

As shown in Figs. 1 and 2 the machine" consists of a housing 11 in which a head 12 is mounted to move vertically in suitable 'guideways 13 by means ofa feed screw 14: to the upper end of which anoperating handle TFES Enr series.

AaTHUn R; Fons, or DETROIT, MICHIGAN, ASSIGNOB Tov CONTINE TA Morons con- 15 is secured. The head 14 carries in suit-- able horizontal guides 16 a sleevel'? which carries a horizontal spindle 18 on one, end of which the milling cutteror cutters 19 are mounted and on the other end of which a pulley 20 is securedto bedriven by means of a suitable belt 21 from a pulley 22., The sleeve 17 has projecting therefrom a lug 23 through which ahorizontal,threaded rod 24f extends. said rod being supportedat its ends by lugs 25 and 26 carried by'the housing and having thereon adjusting nuts 27 and 28 by turning which the sleeve 17' and the spindle 18 may be moved longitudinally of the spindle to adjust the milling cutters 19in a hOIl-i' zontal direction vertical adjustment'of said cutters being accomplished by operation of j the screw 14,

The-housing 11 is given an annular formation around the right hand end of the spindle 18 as shown in Fig. 2 and carries on its inner surface a rotatable head orturret 29 in a plane at right angles to the axis of the spindle 18. The head 29 has rigidly secured thereto a worm wheel 30 which as shown in Fig. 1 is engaged by a worm 31' carried by a shaft 32 on which one-member 33 of a jaw clutch, is mounted 'to' move longitudinally, rotary motion thereof on said shaft being prevented by akey 34c. The clutch .member 33 engages a second clutch member 35 rigidly secured 1 to oneend of a gear 36 rotatably mounted on a sleeve 37 rigidly supported by the housing 11 which sleeve'f'orms an end supportfor the shaft 32.. The gear 36 is of the skew type and meshes with a'sim ilar gear 38 rigidly secured to a-shaft 39 1 95 the outer end ofwhich aflpulley 4.01s secured to be driven by a'belt 41. As a result of the construction described, when the'pulley 40 is rotated by the motion of the belt 41 in the direction indicated in Fig. 1, and when the i clutch members 33 a'1id'35 are in'engagemcnt with e'acli other, the head 29- is'rotated in the direction indicated by the arrow in Fig.1.

The clutch member 33 has formed in its outer surface a. groove 42 for receiving an V operating member 43 carriedby the right ios hand end of a riod l as shown in Fig. 1', the

opposite. end of. said rod having securedthereto ablock 45 engaged by a lever 46 which, as more clearly shown in Fig. 2 is pivotally supported at 47 by a bracket carried by the housing of the machine so that motion of the lever 46 may move the clutch IIIlBIIlbGI' 33 from engagement with the clutch member 35 when it is desired to stop rotation of the head 29 and parts carried there by without stopping the remaining portions of the machine. For this condition, to permit adjusting the machine and trying out 1 the adjustments, the shaft 33 may be rotated tally through said head parallel with the axis of the spindle 18 and preferably equi-. distant from-the axis'of the head, the axis of said spindle and head being displaced 'vertically so that the head rotates eccentrically relatively to the spindle 18, the displacement being in such a direction that the upper portion of thehead is nearer the spindle than is the lower portion of the head. Each of therods 48 is constructed and mounted as indicated in F 1g. 2 and carries on 1ts inner end a sleeve 49, which is a sliding fit in a corresponding bore in the head formed to receive it, the other end of the spindle being a sliding fit in and supported by a fixed cam plate 40 carried by thehead 29. A spring 51 is disposed around the rod 48 between the sleeve 49 and the cam plate 50 to move said rod as far to the left as shown in Fig. 2,

which is the releasing position of said rod,

as the position of the devices engaging the cam plate 50 will permit. The left hand end of the sleeve 49 as more clearly shown in Fig. 6 is enlarged to form a clamping disk 52 engaged by a washer 53 through which the sleeve and disk are held positively'on the rod 48 by lock nuts 54. As more clear- 1y shown in Figs. 5-and 6 opposite edges of the disk 52 are beveled as shown at 52 the planes of these. beveled. surfaces extending through the axis of the head 29. The adjacent face of the headcarries a plurality of cooperating projections or blocks having beveled edge surfaces 55 such that the rods 56 disposed radially between the surfaces 55 and the surfaces 52 are rigidly held in said radial position when the rod 48 is forced to the rightfor the position of the parts shown inFigs. 2 and 6. i

In this positionywith proper adjustment of the milling cutters 19, the rods 56 lie in a plane perpendicular to the axis of the spindle 18, assuming itris desired to mill the ends of the rods parallel with their axis, the plane of the axis of the rods being displaced from the cutter or cutters an amount d pending upon how much it is desired to mill from-the sides of the ends of the rods. It will at once appear that where it is desired a I I 1,476,066

to mill but one side "of the ends of the rods spaced apart on the spindle 18 by an amount 7 equal to the thickness of the ends of the rods it is desired to leave after the mllling opera tion. The rods 48 are moved to clamping position by the following devices:

The right hand end of each of the rods 48 as shown in Fig. 2 is provided with an enlarged head 57 between which and the cam plate 50, a rotary cam 58 is disposed. The cam 58 is provided with a cam surface adj acent to the cam plate 50 so that rotation of the cam 58 in one direction movesthe rod 48 outwardly against the action of the spring 51 to move the disk 52 to its clamping position, while motion of the cam 58 in the reverse direction releases the rod 48 and permits the spring-51to move the disk 52 to its releasing position. Each of the cams 58 is provided with two projecting cam arms 59 and 60 as more clearly shown in Fig. 1, by which the cams 58 are rotated as the head 29 moves the cams about its axis operating the rods 48 in the manner described. The cams are all of substantially the same construction the only difference being, that alternate ones of said cams have their projecting cam arms in onelplane while the in termediate cams have their projecting arms displaced sufficiently in a second plane, from the plane of the arms of the alternate cams so that there is no interference between the cam arms when the cams are rotated.

To distinguish between the alternate and intermediate cams the alternate cams are designated 58 and their projecting cam arms 59 and 60 while the intermediate cams are designated 58 and their projecting cam arms are designated 59 and 6O. The housing 11 carries by means of a suitablebracket,rollers 61 and 61 ,'rotatably mounted on a stud 62 within the inner radius of the head 29 and in such position that these rollers lie respectively in the paths of the cam arms 59 and 59*. As a result, as the head rotates and each of the cam arms'59 and 59 engages a corresponding roller 61 or 61?, the corresponding cam is rotated somewhat more than a quarter of a turn and in the direction a.

releasing the corresponding rod "48.

The housing 11 also carries on a stud 63 located outside of the path of the cams 58 and 58 and nearly opposite to the stud 62, a second pair of rollers similar to the rollers 61 and 61% for the purpose of similarly engaging the cam arms 60 and 60 respectively. As the head 29 rotates, the arms 60 and 60 engage the rollers carried by the stud 63 and the corresponding cams are rotated somewhat over ninety degrees in a direction the reverse to that imparted to release of the rods 48 bythe operation of the rollers 61 and 61*, the rods which have been milled are released and either dropped from the machine by gravity or may read ily be removed by the operator and blanks to be milled'are inserted in their place ready for engagement by the clamping surfaces when the rods are moved by the head 29 to operate the cams arms 60 and 60. The clamping of the blanks in place by the automatic means described occur sulficiently before the blanks engage the milling cutters so that the blanks are positively held in proper position for the milling, operation, which condition continues sufliciently after the'milling operation is completed to insure that the Work on the blanks has been done, at which time they are released as described. A chute 74 is preferably provided to receive the chips from the milling cutters and deliver the same from the machine.

As indicated in Figs 3 and 4, the pulley mechanism employed to drive the spindle 18 and the pulley 40' consists of a'countershaft 63 mounted in a frame 65 the lower end of which is supported on a rodor bar 66, Which, as shown in Fig. 1- is carried by a suitable bracket 67 from the. housing 11 of the machine. The shaft '64: carries tight and loose pulleys 68 and 69 respectively for engagement with the main driving belt 70, and to the ends of the shaft 64, the pulleys 22 and 71 are rigidly secured to drive respectively-the belts21 and 41. Theupper portion of the frame is held in desired position relatively to the housing 11 bya strut 72 having threaded engagement vat its ends with the frame and housing by which theframe may be moved on the rod 66 to tighten the belts 21 and 41 as desired. Suitable shifting mechanism 7 3 is provided for moving the belt from one of the pulleys 68 and 69 .to the other, to start and stop the machine as desired. I 4

. While I have shown my invention in the particular embodiment above described,

I do not however, limit myself to this exact construction, as'I may employ modifications thereof known to the art at the time of the filing of this application without departing from the scope of the appended claims. V

What I. claim is: i

1 In a machine of the classfldescr ibedfihe. combination of a base, a revolvable head carried by the-base, devices for clamping parts to be milled to said head'with their axes at right angles to the axis of said head,

a milling spindle parallel with the; axisof said head and. eccentrically; disposed thereto for milling the projecting ends 3. Ina machine of other end .,of said. head for movin 6r aspire ,to behmilled, said clasp.

ing devices comprisingf movable rods f 6 carried by 'said' head, clamping blocks on one end of said head for engaging said partsto befmilled,rand cam mechanism engagin" said rods on the other. end of said head or moving said rodsto clamping position, said cam mechanism comprising a cam pl ate carriedby said head for eachof said rods, aca-m rotatably mounted on each rodenga ging the correspondingcam plate, arms projectingfrom each cam, and rollers carried by the base in the path of, said arms,

the other inside of said cams radially,

whereby rotation of said head brings theone ofsaid rollers..being outside of and V the camqin one direction and then the other to its clamping, and releasing positions. 2. In a machine of the class, described, the

combination ofav base, a revolvable hea'df carried by the Phase, devices for clamping parts to be milled to said head with their axes atright angles to the axis of said head, a milling spindle parallel with; the axis of said headand eccentrically, disposed thereto for milling the projecting ends of'said parts to be milled, said clamping devices comprising movable rods carried by i said head, clamping blocks on. one end of-said head for engaging said. parts to be milled,

cam mechanism engaging said rods onthe otherendfof said head for moving said rods to clamping position, said cam mechanism comprisinga cam platecarried by said head:

for, each, ofisaid rods, a cam rotatably mountedonfeach rod engaging the corresponding cam plate, .arms ,pro-,j ecting from each cam, and; rollers carried by .the base, .in

the pathof said arms, one of said rollers being outside. of and the other inside of said cams radially, whereby rotation of said head brings thearms of each cam alternately into engagement] with said ,ro-llers to alter; nately rotate thecamin one direction and then thtothef to its clamping and releasing positions, and; a] spring for moving. each rod to releasing position when its cam mechanism is released.

combinationofa base, av revolvable head carried by the base, devices for clamping the class described, the

parts to be milled to said head with their axes at right angles to the axis of said head, at, milling spindle parallel vviththe axisof said head and eccentrically disposed thereto for milling the projecting ends of said Mpartsito. be milled, said clamping devices comprisingmovable rods carried by said head, clamping blocks on one end of said head forengaging.saidvparts to be milled,

cam mechanism, engaging said rods onthe 7 said rods to clamping position and a bloc carblocks and having opposite beveled edges,

, whereby each rod in its clamping position holds two of the parts to be milled between j the combination of a base, a revolvable the beveled edges of its'clamping block and the adjacent clamping blockson said head. 4-. In a machine of the class described, the

combination of a base, arevolvablehe'ad car ried by the base, devices for clamping parts to be milled to said head with their axes at right angles to the axis of said head, a milling spindle parallel with the axis of said head and eccentrically disposed thereto for milling the projecting ends of saidparts to be milled, said clamping devices comprising movable rods carried by said head, clamping blocks on one end of said head for en 4 gaging said parts to be milled, cam mechanism engaging said rods on the other end of said head for moving said rods to clamping position, a block carried by each rod adja cent said clamping blocks and'having'op-V posite beveled edges, whereby each rod in its clamping position holds two of the parts to be milled between the beveled edges oi. its

clamping block and the adjacent clamping blocks on said head, and a spring for movingeach rod and its clampingblock toreleasing position when its cam mechanism is released. v, I

5. In a machine of the class described, the combination of a base, a revolv'able head carried by the base, devices forclamping parts to be milled to said head with their axes at right angles to th axis'of said head, a milling. spindle parallel" with the axis of said head and eccentrically disposed thereto for milling be milled, said clamping devices comprising movable rods carried by said head, clamping blocks on one end of said head for engaging said parts to be milled, and cam mechanism engaging said rods on the other end of said head for moving said rods to clamping, position, said cam mechanism comprising a cam plate carried by said head for each of said rods, a cam rotatably mounted on each rod engaging the corresponding cam plate, arms projecting from each cam,the arms ofalternate cams being in a first plane and the arms of intermediate cams being in a second plane parallel with said first lane, whereby the arms of said alternate cams clear the arms of said intermediate cams when any of said arms are operated, and two pairs of rollers carried on opposite sides of the base, one pair being outside of and the other'pairinside of said cams radially, one roller of each pair being in said first plane and the other roller of each pair being in said second plane,

whereby rotation or" said head brings the cam arms of successive cams'successively into engagement with the rollers of one'pair and subsequently successively. into engagement with the rollers of the other pair, to

tne projecting ends of said parts to alternately move each cam tois clamping head carried by the base, devices for clampingfparts to be. milled to saidhead With,

their axes at right angles to the axis of said head, a milling spindle parallel with the axis of said head and eccentrically disposed thereto for milling the projecting ends of said parts to be milled, said clamping devices comprising movable rods carried by said head, clamping blocks on one end of said head for engaging said parts to be milled, cam mechanism engaging said rods ion the other end of said head for moving said rods to clamping position, said cam mechanism comprising a cam. plate carried by said head for each of said rods, a cam rotatably mounted on each rod engaging the corresponding cam plate, arms projecting :trom each cam, the arms of alternate cams being in a first plane and the arms of inter eciate cams being in a second plane parallel with said first plane, whereby the arms of said alternate cams clear the arms of said intermediate cams when any of said arms are operated, and two pairs of rollers carried On opposite sides of the base, one pair being outside of and the other pair inside or said cams radially, one roller of each pair being in said first plane and the other roller of each pair being in said second plane, whereby rotation of said head brings the cam arms of successive cams successively into engagement with the rollers of one pair and subsequently successively into engagement with the rollers of the other pair, to alternately and releasing positions, the rollers of each pair being alternately engaged by said arms, and a spring around each rod for moving it to releasing position when its cam mechanism is in releasing position. i i

71h a machine of the class described, the combination ofa base, a revolva'ble head carried by the base, devices for clamping parts to be milled to said head with their axes at right angles to the'axis of said head,

a milling" spindle parallel with the axis f said head and eccentrically disposed thereto for milling the projecting ends of said parts to be milled, said clamping devices com prising movable rods carried by said head, clamping blocks on one end of said head for move each cam to its clamping engaging said parts to" be milled, jc'am'mechanism engaging said rods on the other end of said head for moving said rods to clampingposition, a block carried by each red adjacent said clamping blocks and havingvopposite beveled edges, whereby each rod in its clampin position holds two of the to be milled between thebev'eled edge of its clamping block and the adjacent clamping parts sively into engagement with the rollers ofblocks on said head, and said cam mechanism comprising a cam plate carried by saidthead for each of said rods, a cam rotatably mounted on each rod engaging the corresponding cam plate, arms projecting from each cam, the arms of alternate cams being in a first plane and the arms of intermediate cams being in a second plane parallel With said first plane, whereby the arms of said alternate cams clear the arms of said v intermediate cams when any of said arms are operated, and two pairs of rollers carried on opposite sides of the base, one pair being outside of and the other pair insideof said cams radially, one roller of each pair being in said first plane and the other roller of each pair being in said'second plane, whereby rotation of said head brings the cam arms of successive cams successively into engagement with the rollers of one pair and subsequently succesthe other pair, to alternately move each cam to its clamping and releasing positions, the

rollers of each" pair being alternately engaged by said arms.

8. In a machine of the class described, the combination of a base, a revolvable head carried j by the base, devices for clamping parts to be milled to said head with their axes at right angles to the axis of said head, a milling spindle parallel with the axis of said head and eccentrically disposed thereto for milling the projecting ends of said parts to be milled, a countershaft, gearing for driving said head, a second shaft fordriving said gearing, driving connections between eountershaft and said spindle and second shaft, a frame carried'by the'base supporting said counter shaft, and a strut of changeable length between base and frame for tightening said driving connections as desired In witness whereof," I hereunto subscribe my name this 17th day 1929. r V

of August, A. D.

ARTHUR R. Fons; 

